I had unprotected sex three times and then had a very short period (not usual) and now experiencing extreme nausea, headaches and mood swings. Can I be pregnant? I have gotten negative on HPT.

Pregnancy is still a possibility. You will have to wait to see if your period shows up next month.

OK. Thank you for your response. I got my period on the 9th of October for three days. I usually have it seven days. I am now experiencing terrible nausea that comes and goes. I also notice a feeling as if my period is about to come again. UGHH and I have been so tired. I guess it would be def too soon for a positive result now.

Yes, it would be too early for a positive.

The past two days have still been on and off nausea but am now experiencing cramps that feel very menstrual yet I am not due until November 10th. I keep feeling as if I am going to start at any minute when this feeling occurs. Also, I have noticed three pimple breakout on my face which isn't my norm, I usually experience one if any right before my period. Frontal headache is still there as well. Could this be possible?

Yesterday I was extremely exhausted and have noticed very sore nipples. I do not experience that with PMS. I amd still cramping lightly yet I have another 16 days until my next period should arrive.